Palmitic Acid → Sodium palmitate

HRID 1369363Notes

Reaction equation

HRID 1369363 reaction equation
[OH-].[Na+:2].[C:3]([OH:20])(=[O:19])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18]>C([O-])(=O)CCCCCCCCCCCCCCC.[Ag+].O>[C:3]([O-:20])(=[O:19])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[Na+:2]

Participants

5

Reactant 2

HCID 985Palmitic AcidHCID 14798Sodium Hydroxide

Product 1

HCID 2735111Sodium palmitate

Reagents, catalysts & solvents 2

HCID 165131Hexadecanoic acid, silver(1+) salt (1:1)CatalystHCID 962WaterSolvent

Procedure

In the preparation of Types I & II silver palmitate, solution A was first prepared by adding 0.15 moles of solid sodium hydroxide to a dispersion of 0.1575 moles and 0.176 moles of palmitic acid respectively in 1L of deionized water at 68° C. thereby producing a solution of sodium palmitate with a pH of ca. 9. Solution B, 250 mL of 0.6M aqueous silver nitrate acidified 4 g of 65% nitric acid at a temperature of 58° C., was then added with vigorous stirring to solution A in 15 s while maintaining a temperature of 68° C. After 1 minute the resulting suspension of silver palmitate was cooled to room temperature and had a pH of ca. 5 and a UAg of ca. 350 mV. The silver palmitate was filtered off under reduced pressure, washed twice each time with about 5L of deionized water and dried in a forced air drying cupboard at 40° C.

Workup

  1. customwas first prepared

Sources & evidence

ORD record
ord-821f1741a7f64ca8a6a82218722c2d64
Source dataset
uspto-grants-2003_06
Patent number
US06579671B2

Reaction notes

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